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PUR FM-3700 Faucet Filter System

The PUR FM-3700 faucet filter is a 2-stage water filtration system that removes 99.99% microbial cysts, cryptosporidium, and giardia. The PUR FM-3700 faucet water filter system has an automated filter life indicator to inform you when to change the filter. The PUR FM-3700 filter lasts up to 100 gallons or approximately 2 to 3 months. The PUR FM3700 faucet filtration system allows you to switch between filtered and unfiltered water. The swivel spray feature allows you to adjust the water where you need it. The PUR FM-3700 faucet filter is chrome. Filter Size: 2.25-inch x 4.5-inch. Mount Size: 3-inch x 5-inch x 6-inch. The replacement filter for this PUR FM-3700 faucet filter system is the PUR RF-9999 faucet filter.

4. Twist top cover off PUR faucet filter unit and insert filter (note: filter will fit loosely in the unit) and replace the cover

5. Attach the filter unit to your faucet with the PUR logo facing the front by pushing the unit up until you hear it click onto the faucet

6. Run cold water for 5 minutes with the faucet set to the filtered position to flush the filter cartridge (it is normal to see cloudy water and loose materials, or hear air forced out of the filter while flushing the cartridge)

7. For filtered water push down on the water switch (do not run this position with hot water)

8. For unfiltered water pull up on the water switch (it is okay to run hot water in the filter-off position

Resetting Your Filter Change Indicator

1. Installing the new filter cartridge automatically resets the filter life indicator light